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element-web/test/editor/model-test.ts
David Langley 491f0cd08a
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2024-09-09 13:57:16 +00:00

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/*
Copyright 2024 New Vector Ltd.
Copyright 2019 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import EditorModel from "../../src/editor/model";
import { createPartCreator, createRenderer, MockAutoComplete } from "./mock";
import DocumentOffset from "../../src/editor/offset";
import { PillPart } from "../../src/editor/parts";
import DocumentPosition from "../../src/editor/position";
describe("editor/model", function () {
describe("plain text manipulation", function () {
it("insert text into empty document", function () {
const renderer = createRenderer();
const model = new EditorModel([], createPartCreator(), renderer);
model.update("hello", "insertText", new DocumentOffset(5, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(5);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello");
});
it("append text to existing document", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello")], pc, renderer);
model.update("hello world", "insertText", new DocumentOffset(11, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(11);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello world");
});
it("prepend text to existing document", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("world")], pc, renderer);
model.update("hello world", "insertText", new DocumentOffset(6, false));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(6);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello world");
});
});
describe("handling line breaks", function () {
it("insert new line into existing document", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello")], pc, renderer);
model.update("hello\n", "insertText", new DocumentOffset(6, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(1);
expect((renderer.caret as DocumentPosition).offset).toBe(1);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello");
expect(model.parts[1].type).toBe("newline");
expect(model.parts[1].text).toBe("\n");
});
it("insert multiple new lines into existing document", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("hello")], pc, renderer);
model.update("hello\n\n\nworld!", "insertText", new DocumentOffset(14, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(4);
expect((renderer.caret as DocumentPosition).offset).toBe(6);
expect(model.parts.length).toBe(5);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello");
expect(model.parts[1].type).toBe("newline");
expect(model.parts[1].text).toBe("\n");
expect(model.parts[2].type).toBe("newline");
expect(model.parts[2].text).toBe("\n");
expect(model.parts[3].type).toBe("newline");
expect(model.parts[3].text).toBe("\n");
expect(model.parts[4].type).toBe("plain");
expect(model.parts[4].text).toBe("world!");
});
it("type in empty line", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel(
[pc.plain("hello"), pc.newline(), pc.newline(), pc.plain("world")],
pc,
renderer,
);
model.update("hello\nwarm\nworld", "insertText", new DocumentOffset(10, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(2);
expect((renderer.caret as DocumentPosition).offset).toBe(4);
expect(model.parts.length).toBe(5);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello");
expect(model.parts[1].type).toBe("newline");
expect(model.parts[1].text).toBe("\n");
expect(model.parts[2].type).toBe("plain");
expect(model.parts[2].text).toBe("warm");
expect(model.parts[3].type).toBe("newline");
expect(model.parts[3].text).toBe("\n");
expect(model.parts[4].type).toBe("plain");
expect(model.parts[4].text).toBe("world");
});
});
describe("non-editable part manipulation", function () {
it("typing at start of non-editable part prepends", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("try "), pc.roomPill("#someroom")], pc, renderer);
model.update("try foo#someroom", "insertText", new DocumentOffset(7, false));
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(7);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("try foo");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe("#someroom");
});
it("typing in middle of non-editable part appends", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.plain("try "), pc.roomPill("#someroom"), pc.plain("?")], pc, renderer);
model.update("try #some perhapsroom?", "insertText", new DocumentOffset(17, false));
expect((renderer.caret as DocumentPosition).index).toBe(2);
expect((renderer.caret as DocumentPosition).offset).toBe(8);
expect(model.parts.length).toBe(3);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("try ");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe("#someroom");
expect(model.parts[2].type).toBe("plain");
expect(model.parts[2].text).toBe(" perhaps?");
});
it("remove non-editable part with backspace", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.roomPill("#someroom")], pc, renderer);
model.update("#someroo", "deleteContentBackward", new DocumentOffset(8, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(-1);
expect((renderer.caret as DocumentPosition).offset).toBe(0);
expect(model.parts.length).toBe(0);
});
it("remove non-editable part with delete", function () {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([pc.roomPill("#someroom")], pc, renderer);
model.update("someroom", "deleteContentForward", new DocumentOffset(0, false));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(-1);
expect((renderer.caret as DocumentPosition).offset).toBe(0);
expect(model.parts.length).toBe(0);
});
});
describe("auto-complete", function () {
it("insert user pill", function () {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "@alice", text: "Alice" } as PillPart]);
const model = new EditorModel([pc.plain("hello ")], pc, renderer);
model.update("hello @a", "insertText", new DocumentOffset(8, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(1);
expect((renderer.caret as DocumentPosition).offset).toBe(2);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("pill-candidate");
expect(model.parts[1].text).toBe("@a");
// this is a hacky mock function
(model.autoComplete as unknown as MockAutoComplete).tryComplete();
expect(renderer.count).toBe(2);
expect((renderer.caret as DocumentPosition).index).toBe(1);
expect((renderer.caret as DocumentPosition).offset).toBe(5);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("user-pill");
expect(model.parts[1].text).toBe("Alice");
});
it("insert room pill", function () {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#riot-dev" } as PillPart]);
const model = new EditorModel([pc.plain("hello ")], pc, renderer);
model.update("hello #r", "insertText", new DocumentOffset(8, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(1);
expect((renderer.caret as DocumentPosition).offset).toBe(2);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("pill-candidate");
expect(model.parts[1].text).toBe("#r");
// this is a hacky mock function
(model.autoComplete as unknown as MockAutoComplete).tryComplete();
expect(renderer.count).toBe(2);
expect((renderer.caret as DocumentPosition).index).toBe(1);
expect((renderer.caret as DocumentPosition).offset).toBe(9);
expect(model.parts.length).toBe(2);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe("#riot-dev");
});
it("type after inserting pill", function () {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#riot-dev" } as PillPart]);
const model = new EditorModel([pc.plain("hello ")], pc, renderer);
model.update("hello #r", "insertText", new DocumentOffset(8, true));
// this is a hacky mock function
(model.autoComplete as unknown as MockAutoComplete).tryComplete();
model.update("hello #riot-dev!!", "insertText", new DocumentOffset(17, true));
expect(renderer.count).toBe(3);
expect((renderer.caret as DocumentPosition).index).toBe(2);
expect((renderer.caret as DocumentPosition).offset).toBe(2);
expect(model.parts.length).toBe(3);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("hello ");
expect(model.parts[1].type).toBe("room-pill");
expect(model.parts[1].text).toBe("#riot-dev");
expect(model.parts[2].type).toBe("plain");
expect(model.parts[2].text).toBe("!!");
});
it("pasting text does not trigger auto-complete", function () {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#define-room" } as PillPart]);
const model = new EditorModel([pc.plain("try ")], pc, renderer);
model.update("try #define", "insertFromPaste", new DocumentOffset(11, true));
expect(model.autoComplete).toBeFalsy();
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(11);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("try #define");
});
it("dropping text does not trigger auto-complete", function () {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#define-room" } as PillPart]);
const model = new EditorModel([pc.plain("try ")], pc, renderer);
model.update("try #define", "insertFromDrop", new DocumentOffset(11, true));
expect(model.autoComplete).toBeFalsy();
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(11);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("try #define");
});
it("insert room pill without splitting at the colon", () => {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#room:server" } as PillPart]);
const model = new EditorModel([], pc, renderer);
model.update("#roo", "insertText", new DocumentOffset(4, true));
expect(renderer.count).toBe(1);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("pill-candidate");
expect(model.parts[0].text).toBe("#roo");
model.update("#room:s", "insertText", new DocumentOffset(7, true));
expect(renderer.count).toBe(2);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("pill-candidate");
expect(model.parts[0].text).toBe("#room:s");
});
it("allow typing e-mail addresses without splitting at the @", () => {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "@alice", text: "Alice" } as PillPart]);
const model = new EditorModel([], pc, renderer);
model.update("foo@a", "insertText", new DocumentOffset(5, true));
expect(renderer.count).toBe(1);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("plain");
expect(model.parts[0].text).toBe("foo@a");
});
it("should allow auto-completing multiple times with resets between them", () => {
const renderer = createRenderer();
const pc = createPartCreator([{ resourceId: "#riot-dev" } as PillPart]);
const model = new EditorModel([pc.plain("")], pc, renderer);
model.update("#r", "insertText", new DocumentOffset(8, true));
expect(renderer.count).toBe(1);
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(2);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("pill-candidate");
expect(model.parts[0].text).toBe("#r");
// this is a hacky mock function
(model.autoComplete as unknown as MockAutoComplete).tryComplete();
expect(renderer.count).toBe(2);
expect((renderer.caret as DocumentPosition).index).toBe(0);
expect((renderer.caret as DocumentPosition).offset).toBe(9);
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("room-pill");
expect(model.parts[0].text).toBe("#riot-dev");
model.reset([]);
model.update("#r", "insertText", new DocumentOffset(8, true));
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("pill-candidate");
expect(model.parts[0].text).toBe("#r");
// this is a hacky mock function
(model.autoComplete as unknown as MockAutoComplete).tryComplete();
expect(model.parts.length).toBe(1);
expect(model.parts[0].type).toBe("room-pill");
expect(model.parts[0].text).toBe("#riot-dev");
});
});
describe("emojis", function () {
it("regional emojis should be separated to prevent them to be converted to flag", () => {
const renderer = createRenderer();
const pc = createPartCreator();
const model = new EditorModel([], pc, renderer);
const regionalEmojiA = String.fromCodePoint(127462);
const regionalEmojiZ = String.fromCodePoint(127487);
const caret = new DocumentOffset(0, true);
const regionalEmojis: string[] = [];
regionalEmojis.push(regionalEmojiA);
regionalEmojis.push(regionalEmojiZ);
for (let i = 0; i < 2; i++) {
const position = model.positionForOffset(caret.offset, caret.atNodeEnd);
model.transform(() => {
const addedLen = model.insert(pc.plainWithEmoji(regionalEmojis[i]), position);
caret.offset += addedLen;
return model.positionForOffset(caret.offset, true);
});
}
expect(model.parts.length).toBeGreaterThanOrEqual(4);
expect(model.parts[0].type).toBe("emoji");
expect(model.parts[1].type).not.toBe("emoji");
expect(model.parts[2].type).toBe("emoji");
expect(model.parts[3].type).not.toBe("emoji");
});
});
});
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